Notes: 536177 VITE TE ISO 4014 M6X1X16 8.8 ZINC. ISO 4 is original CARRARO product. 536177 VITE TE ISO 4014 M6X1X16 8.8 ZINC. ISO 41 is commonly used in transmissions/axles/engines . if you have any questions please do not hesitate to contact us via Whatsapp +17275652849